_Glossology_, the department of botany in which technical terms are explained. _Glumaceous_, glume-like, or glume-bearing. _Glume_; Glumes are the husks or floral coverings of Grasses, or, particularly, the outer husks or bracts of each spikelet. _Glumelles_, the inner husks of Grasses. _Gonophore_, a stipe below stamens, 113. _Gossypine_, cottony, flocculent. _Gracilis_, Latin for slender. _Grain_, see _Caryopsis_, 121. _Gramineous_, grass-like. _Granular_, composed of grains. _Granule_, a small grain. _Graveolent_, heavy-scented. _Griseous_, gray or bluish-gray. _Growth_, 129. _Grumous_, or _Grumose_, formed of coarse clustered grains. _Guttate_, spotted, as if by drops of something colored. _Gymnos_, Greek for naked, as _Gymnocarpous_, naked-fruited. _Gymnospermous_, naked-seeded, 109. _Gymnospermous gynœcium_, 109. _Gymnospermæ_, or _Gymnospermous Plants_, 183. _Gynandrous_, with stamens borne on, i. e. united with, the pistil, 99. _Gynœcium_, a name for the pistils of a flower taken altogether, 105. _Gynobase_, a depressed receptacle or support of the pistil or carpels, 114. _Gynophore_, a stalk raising a pistil above the stamens, 113. _Gynostegium_, a sheath around pistils, of whatever nature. _Gynostemium_, name of the column in Orchids, &c., consisting of style and stigma with stamens combined. _Gyrate_, coiled or moving circularly. _Gyrose_, strongly bent to and fro. _Habit_, the general aspect of a plant, or its mode of growth. _Habitat_, the situation or country in which a plant grows in a wild state. _Hairs_, hair-like growths on the surface of plants. _Hairy_, beset with hairs, especially longish ones. _Halberd-shaped_, see _hastate_, 53. _Halved_, when appearing as if one half of the body were cut away. _Hamate_, or _Hamose_, hooked; the end of a slender body bent round. _Hamulose_, bearing a small hook; a diminutive of the last. _Haplo-_, in Greek compounds, single; as _Haplostemonous_, having only one series of stamens. _Hastate_, or _Hastile_, shaped like a halberd; furnished with a spreading lobe on each side at the base, 53. _Head_, capitulum, a form of inflorescence, 74. _Heart-shaped_, of the shape of a heart as painted on cards, 53. _Heart-wood_, the older or matured wood of exogenous trees, 142. _Helicoid_, coiled like a _helix_ or snail-shell, 77. _Helmet_, the upper sepal of Monkshood is so called. _Helvolous_, grayish-yellow. _Hemi-_ in compounds from the Greek, half; e. g. _Hemispherical_, &c. _Hemicarp_, half-fruit, one carpel of an Umbelliferous plant, 121. _Hemitropous_ (ovule or seed), nearly same as _amphitropous_, 123. _Hepta-_ (in words of Greek origin), seven; as _Heptagynous_, with seven pistils or styles. _Heptamerous_, its parts in sevens. _Heptandrous_, having seven stamens. _Herb_, plant not woody, at least above ground. _Herbaceous_, of the texture of an herb; not woody, 39. _Herbarium_, the botanist's arranged collection of dried plants, 186.